<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<form action="http://www.baidu.com">
    用户名：<input type="text" name="username" maxlength="5" value="请输入用户名" readonly><br>
    密码：<input type="password" name="password" maxlength="12"><br>
    性别：<input type="radio" name="gender" value="m" id="r1"><label for="r1">男</label>
    <input type="radio" name="gender" value="w" checked>女<br>
    兴趣爱好：<input type="checkbox" name="hobby" value="cy">抽烟
    <input type="checkbox" name="hobby" value="hj">喝酒
    <input type="checkbox" name="hobby" checked value="tt">烫头<br>
    生日：<input type="date" name="birthday"><br>
    靓照：<input type="file" name="pic"><br>
    所在地：<select name="city" >
    <option value="bj" selected>北京</option>
    <option value="sh">上海</option>
    <option value="gz" >广州</option>
    </select><br>
    <input type="submit" value="注册">
</form>
</body>
</html>